Genetic engineering is a set of technologies used to change the genetic makeup of cells, including thetransfer of genes within and across species boundaries to produce improved or novel organisms. The techniques involve sophisticated manipulations of genetic material and other biologically important chemicals.
Genes are the chemical blueprints that determine an organism’s traits. Moving genes from one organism to another transfers those traits. Through genetic engineering, organisms can be given targeted combinations of new genes—and therefore new combinations of traits—that do not occur in nature and, indeed, cannot be developed by natural means. Such an approach is different from classical plant and animal breeding, which operates through selection across many generations for traits of interest. Classical breeding operates on traits, only indirectly selecting genes, whereas biotechnology targets genes, attempting to influence traits. The potential of biotechnology is to rapidly accelerate the rate of progress and efficiency of breeding.